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 TM 9-2320-270-20-3
AIR HORN - CONTINUED
ACTION
REMARKS
ITEM
LOCATION
INSTALLATION CONTINUED
a. Wrap threads with teflon tape
Elbow (2)
37. Coupling (1)
(page 4-1).
b. Screw in and tighten using 3/8-inch
wrench.
Push in and using plastic hammer, seat.
Insert (3)
38. Elbow (2)
a. Lube end lightly with soap and push in
Air line 39(4)
39.
until seated.
b. Screw on and tighten using 9/16-inch
wrench.
ADJUSTMENT
WARNING
Hearing protection must be worn while adjusting air horns. Air horns are very loud. If
hearing protection is not worn, permanent ear damage could result.
a. Start engine and charge air system to
Engine
40.
normal pressure (TM 9-2320-270-10).
b. Shut down engine
(TM 9-2320-270-10).
a. Using 5/32-inch key and 1/2-inch
Spring seat (6) and
41. Right horn (5)
wrench, unscrew nut part way.
nut (7)
b. Using 5/32-inch key, unscrew seat (6)
as far out as it will go.
Pull, sounding horn as many times as
Chain (9)
42. Air horn valve (8)
needed to adjust.
TA240788
4-1258
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